JAVA GUI上机.doc

JAVA GUI上机1. AWT上机练习：编写程序实现一个窗口，运行结果如下图所示，它是一个具有标题、大小的框架。参考代码：import java.awt.*;public class FrameDemo extends Framepublic FrameDemo(String title) super(title); public static void main(String agrs)FrameDemo frame = new FrameDemo(Demo Frame); frame.setLocation(100, 100);frame.setSize(500, 200);frame.setVisible(true); 2. AWT上机练习：编写程序，运行结果如下图所示，要求在窗口中实现一个按钮组件。参考代码：import java.awt.*;import java.awt.event.*;public class ButtonDemo extends Frame implements ActionListenerButton button; public static void main(String args)ButtonDemo frame = new ButtonDemo(); public ButtonDemo() button = new Button(First);button.addActionListener(this);add(button); setTitle(Button);setSize(130, 100);setVisible(true); public void actionPerformed(ActionEvent evt)String arg = evt.getActionCommand(); if (arg.equals(First) System.out.println(Button press received.); 3. AWT上机练习：编写如下图所示的图形界面程序。参考代码：import java.awt.*;import java.awt.event.*;public class CheckboxDemo extends Frame implements ItemListenerpublic static void main(String args)CheckboxDemo frame = new CheckboxDemo(); public CheckboxDemo() setTitle(Checkbox Test);setSize(300, 100);setLayout(new FlowLayout(); Checkbox one = new Checkbox(One, true);Checkbox two = new Checkbox(Two, false); Checkbox three = new Checkbox(Three, true); one.addItemListener(this); two.addItemListener(this); three.addItemListener(this); add(one); add(two);add(three); setVisible(true); public void itemStateChanged(ItemEvent evt) String state = deselected;if (evt.getStateChange() = ItemEvent.SELECTED)state = selected;System.out.println(evt.getItem()+state);4. AWT上机练习：编写如下图所示的图形界面程序。要求在文本段中分别输入用户名和密码，单击按钮后，能够在文本区中显示所输入的用户名和密码。参考代码：import java.awt.*;import java.awt.event.*;public class JavaApplicationGUI extends Frame implements ActionListener Label mylab1,mylab2; TextField mytf1,mytf2; TextArea myta; Button btn; public JavaApplicationGUI() mylab1 = new Label(用户名：); mylab2 = new Label(密 码：); mytf1 = new TextField(30); mytf2 = new TextField(30); myta = new TextArea(5,32); btn = new Button(提交); setLayout(new FlowLayout(); add(mylab1); add(mytf1); add(mylab2); add(mytf2); add(myta); add(btn); btn.addActionListener(this); setBounds(200,50,330,200); setVisible(true); validate(); public void actionPerformed(ActionEvent e) myta.setText(用户名： + mytf1.getText() + n密 码： + mytf2.getText(); public static void main(String args) new JavaApplicationGUI(); 5. Swing上机练习：HelloWorld 的示例来演示第一个 Swing 程序。要求：按下按钮显示HelloWorld!如下图如所示。 参考代码：import javax.swing.*; import java.awt.*; import java.awt.event.*; /创建HelloWorld类 public class HelloWorld /创建主方法 public static void main(String args) try /try语句块，监视该段程序 /设置窗口风格 UIManager.setLookAndFeel(UIManager.getCrossPlatformLookAndFeelClassName(); catch (Exception e) /捕获异常 e.printStackTrace(); /异常信息输出 JFrame frame = new JFrame(Swing第一个示例);/创建顶层容器并初始化 Container c = frame.getContentPane(); /获取面板容器 JPanel pane = new JPanel(); /创建面板panel并初始化 c.add(pane); /将面板添加到窗口 pane.setLayout(new FlowLayout(); /设置布局管理器FlowLayout final JLabel label = new JLabel(); /创建标签label并初始化 JButton button = new JButton(按钮); /创建button并初始化 pane.add(label); /向容器中添加组件label pane.add(button); /向容器中添加组件button /对按钮事件的处理方法 button.addActionListener(new ActionListener() public void actionPerformed(ActionEvent e) label.setText(HelloWorld！); /设置label显示的内容 ); /窗口设置结束，开始显示 frame.addWindowListener(new WindowAdapter() /匿名类用于注册监听器 public void windowClosing(WindowEvent e) System.exit(0); /程序退出 ); frame.setSize(300,240); /设置窗口大小 frame.setVisible(true); /显示窗口 6. 登录界面设计，如下图所示。import java.awt.BorderLayout;import java.awt.Container;import java.awt.FlowLayout;import javax.swing.JButton;import javax.swing.JFrame;import javax.swing.JLabel;import javax.swing.JPanel;import javax.swing.JPasswordField;import javax.swing.JTextField;public class Login private JFrame frame = new JFrame(登录);private Container c = frame.getContentPane();private JTextField username = new JTextField();private JPasswordField password = new JPasswordField();private JButton ok = new JButton(确定);private JButton cancel = new JButton(取消);public Login()frame.setSize(300,200);c.setLayout(new BorderLayout();initFrame();frame.setVisible(true);private void initFrame() /顶部JPanel titlePanel = new JPanel();titlePanel.setLayout(new FlowLayout();titlePanel.add(new JLabel(系统管理员登录);c.add(titlePanel,North);/中部表单JPanel fieldPanel = new JPanel();fieldPanel.setLayout(null);JLabel l1 = new JLabel(用户名:);l1.setBounds(50, 20, 50, 20);JLabel l2 = new JLabel(密 码:);l2.setBounds(50, 60, 50, 20);fieldPanel.add(l1);fieldPanel.add(l2);username.setBounds(110,20,120,20);password.setBounds(110,60,120,20);fieldPanel.add(username);fieldPanel.add(password);c.add(fieldPanel,Center);/底部按钮JPanel buttonPanel = new JPanel();buttonPanel.setLayout(new FlowLayout();buttonPanel.add(ok);buttonPanel.add(cancel);c.add(buttonPanel,South);public static void main(String args)new Login();7注册界面设计。如下图所示。import java.awt.Color;import java.awt.Dimension;import java.awt.Font;import java.awt.Toolkit;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import javax.swing.ButtonGroup;import javax.swing.ImageIcon;import javax.swing.JButton;import javax.swing.JFrame;import javax.swing.JLabel;import javax.swing.JOptionPane;import javax.swing.JPanel;import javax.swing.JPasswordField;import javax.swing.JRadioButton;import javax.swing.JTextField;public class Register extends JFrame implements ActionListener/* * */private static final long serialVersionUID = 4257580101437991396L;JPanel pnlRegister;JLabel lblUserName,lblGender,lblAge,img1,img2;JLabel lblPassword,lblConfirmPass,logoPosition;JTextField txtUserName,txtAge;JPasswordField pwdUserPassword,pwdConfirmPass;JRadioButton rbtnMale,rbtnFemale;ButtonGroup btngGender; JButton btnOk,btnCancel,btnClear;String strServerIp; /用于将窗口用于定位Dimension scrnsize; Toolkit toolkit=Toolkit.getDefaultToolkit(); /构造方法public Register(String ip)super(帐号注册);strServerIp=ip;pnlRegister=new JPanel();this.getContentPane().add(pnlRegister);lblUserName=new JLabel(用 户 名:);lblGender=new JLabel(性 别:);lblAge=new JLabel(年 龄:);lblPassword=new JLabel(密 码:);lblConfirmPass=new JLabel(确认密码:);txtUserName=new JTextField(30);txtAge=new JTextField(10);pwdUserPassword=new JPasswordField(30);pwdUserPassword.setEchoChar(*);pwdConfirmPass=new JPasswordField(30);pwdConfirmPass.setEchoChar(*);rbtnMale=new JRadioButton(男,true);rbtnFemale=new JRadioButton(女); btngGender=new ButtonGroup(); btnOk=new JButton(确定(O); btnOk.setMnemonic(O); btnOk.setToolTipText(保存注册信息);btnCancel=new JButton(返回(B);btnCancel.setMnemonic(B);btnCancel.setToolTipText(返回登录窗口);btnClear=new JButton(清空(L);btnClear.setMnemonic(L);btnClear.setToolTipText(清空注册信息);/* 该布局采用手动布局 * *setBounds设置组件位置 * * setFont设置字体、字型、字号 * *setForeground设置文字的颜色 * * setBackground设置背景色 * * setOpaque将背景设置为透明 */pnlRegister.setLayout(null); /组件用手动布局pnlRegister.setBackground(new Color(180,210,250);lblUserName.setBounds(30,70,120,30);txtUserName.setBounds(110,75,120,20);lblPassword.setBounds(30,95,100,30);pwdUserPassword.setBounds(110,100,120,20);lblConfirmPass.setBounds(30,120,100,30);pwdConfirmPass.setBounds(110,125,120,20);lblGender.setBounds(30,145,100,30);rbtnMale.setBounds(110,150,60,20);rbtnFemale.setBounds(190,150,60,20);lblAge.setBounds(30,170,100,30);txtAge.setBounds(110,175,120,20); btnOk.setBounds(10,210,80,25); btnClear.setBounds(130,210,80,25); btnCancel.setBounds(245,210,80,25);Font fontstr=new Font(宋体,Font.PLAIN,12);lblUserName.setFont(fontstr); lblGender.setFont(fontstr);lblPassword.setFont(fontstr);lblConfirmPass.setFont(fontstr);lblAge.setFont(fontstr); rbtnMale.setFont(fontstr);rbtnFemale.setFont(fontstr);txtUserName.setFont(fontstr);btnOk.setFont(fontstr);btnCancel.setFont(fontstr);btnClear.setFont(fontstr);lblUserName.setForeground(Color.BLACK);lblGender.setForeground(Color.BLACK);lblPassword.setForeground(Color.BLACK);lblAge.setForeground(Color.BLACK);lblConfirmPass .setForeground(Color.BLACK);rbtnMale.setForeground(Color.BLACK);rbtnFemale.setForeground(Color.BLACK);rbtnMale.setBackground(Color.white);rbtnFemale.setBackground(Color.white);rbtnMale.setOpaque(false); rbtnFemale.setOpaque(false);pnlRegister.add(lblUserName);pnlRegister.add(lblGender);pnlRegister.add(lblPassword);pnlRegister.add(lblConfirmPass);pnlRegister.add(lblAge);pnlRegister.add(txtAge);pnlRegister.add(txtUserName);pnlRegister.add(pwdUserPassword);pnlRegister.add(pwdConfirmPass);pnlRegister.add(btnOk);pnlRegister.add(btnCancel);pnlRegister.add(btnClear);pnlRegister.add(rbtnMale);pnlRegister.add(rbtnFemale);btngGender.add(rbtnMale); btngGender.add(rbtnFemale); /设置背景图片 /ImageIcon icon1 = new ImageIcon(this.getClass().getResource(/icons/3.png); /img1=new JLabel(icon1); /pnlRegister.add(img1);/img1.setBounds(0, -20,340, 96);/ImageIcon icon2 = new ImageIcon(this.getClass().getResource(/icons/4.png); /img2=new JLabel(icon2); /pnlRegister.add(img2);/img2.setBounds(185, 90,200, 106); this.setSize(340,270);this.setVisible(true);this.setResizable(false);this.setDefaultCloseOperation(EXIT_ON_CLOSE);/将窗口定位在屏幕中央 scrnsize=toolkit.getScreenSize(); this.setLocation(scrnsize.width/2-this.getWidth()/2, scrnsize.height/2-this.getHeight()/2);/三个按钮注册监听btnOk .addActionListener(this);btnCancel.addActionListener(this);btnClear .addActionListener(this); /构造方法结束class Register_Customer extends Object implements java.io.Serializable /* * */private static final long serialVersionUID = 6843334615403912646L;String custName; String custPassword; String age; String sex; String email;/按钮监听响应public void actionPerformed(ActionEvent ae)Object source=new Object()